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Thread: D.E. "diatomaceous earth" grid leak and D.E. stuck on liner

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    Join Date
    Jul 2016
    Location
    Holly, Michigan
    Posts
    2

    D.E. "diatomaceous earth" grid leak and D.E. stuck on liner

    Our filter grid had a small hole allowing D.E. to leak back into the pool. This went on for awhile before I figured out what was wrong. Now the pool liner is stained with D.E. that has hardened on the liner and no amount of scrubbing with a brush will dislodge. Any help would be greatly appreciated.
    24', 17K gallons, Above ground, vinyl, Sequel II Rotary DE Filter, Doughboy Pool Power-Pak II pump

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    JoyfulNoise's Avatar
    Join Date
    May 2015
    Location
    Tucson, AZ
    Posts
    11,580

    Re: D.E. "diatomaceous earth" grid leak and D.E. stuck on liner

    DE does not typically stain or stick to a liner. It should just vacuum back up easily. Can you get down to where the stains are and verify that they are actually rough and raised?
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Join Date
    Jul 2016
    Location
    Holly, Michigan
    Posts
    2

    Re: D.E. "diatomaceous earth" grid leak and D.E. stuck on liner

    Thank you for your reply. Yes, it is rough and raised. If brushed on hard for a long time it does clean it up a little. The leak was probably last year and sat over the winter.
    24', 17K gallons, Above ground, vinyl, Sequel II Rotary DE Filter, Doughboy Pool Power-Pak II pump

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